RFC 1972 PDF

RTP Payload Format for Enhanced Variable Rate Codecs (EVRC) and Selectable Mode Vocoders (SMV)

Stateful Path Computation Element (PCE) Protocol Extensions for Usage with Point-to-Multipoint TE Label Switched Paths (LSPs)

Request Routing Redirection Interface for Content Delivery Network (CDN) Interconnection

Return Path Specified Label Switched Path (LSP) Ping